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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1443 (Engine Mechanical - 4.2L (Ll8)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Crankshaft Rear Oil Seal And Housing Replacement >> Installation Procedure

Installation Procedure

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  1. Use the J 44227  to install the crankshaft rear oil seal. See Special Tools and Equipment .
  2. Remove the J 44227  . See Special Tools and Equipment .
    3. Fig 1: Applying Sealer To Rear Oil Seal Housing
    GM637714Courtesy of GENERAL MOTORS CORP.
  3. Apply a 3 mm (0.12 in) bead of GM P/N 12378521 to the rear oil seal housing (1).
    4. Fig 2: Installing J 44219 Guide Pins Into Block
    GM1377394Courtesy of GENERAL MOTORS CORP.
  4. Install the J 44219  guide pins (1) into the block. See Special Tools and Equipment .
    5. IMPORTANT:
    • When installing a new seal, use the plastic installation sleeve supplied with the new seal.
    • The seal installation sleeve should come off after the seal is installed. Discard the sleeve.
  5. Slide the crankshaft rear oil seal housing over the alignment pins J 44219  and crankshaft. See Special Tools and Equipment .
  6. Install the crankshaft rear oil seal housing bolts, except the 2 in place of the guide pins.
  7. Remove the J 44219  guide pins. See Special Tools and Equipment .
    8. NOTE: Refer to Fastener Notice in Cautions and Notices.
  8. Install the remaining 2 crankshaft rear oil seal housing bolts.

    Tighten:  Tighten all the oil seal housing bolts to 10 N.m (89 lb in).

    9. Fig 3: Removing Excess Sealer From Oil Pan Area
    GM1377395Courtesy of GENERAL MOTORS CORP.
  9. Wipe off any excess material from the bottom of the oil pan sealing area (1).
    10. Fig 4: Installing Flywheel
    GM637686Courtesy of GENERAL MOTORS CORP.
  10. Install the flywheel and secure with the bolts.

    Tighten:  Tighten the flywheel bolts in sequence to 25 N.m (18 lb ft).

  11. Use the J 36660-A to tighten the bolts an additional 50 degrees.
  12. Install the transmission. Refer to Transmission Replacement (LL8) in Automatic Transmission - 4L60-E/4L65-E.
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